diff options
Diffstat (limited to 'rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c')
-rw-r--r-- | rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c b/rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c new file mode 100644 index 00000000..243470ca --- /dev/null +++ b/rtemsbsd/sys/dev/usb/controller/dwc_otg_nexus.c @@ -0,0 +1,166 @@ +/*- + * SPDX-License-Identifier: BSD-2-Clause-FreeBSD + * + * Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de) + * Copyright (c) 2012 Hans Petter Selasky. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <machine/rtems-bsd-kernel-space.h> + +#include <sys/cdefs.h> +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/condvar.h> +#include <sys/kernel.h> +#include <sys/lock.h> +#include <sys/malloc.h> +#include <sys/module.h> +#include <sys/mutex.h> +#include <sys/rman.h> + +#include <dev/usb/usb.h> +#include <dev/usb/usbdi.h> + +#include <dev/usb/usb_core.h> +#include <dev/usb/usb_busdma.h> +#include <dev/usb/usb_process.h> +#include <dev/usb/usb_util.h> + +#include <dev/usb/usb_controller.h> +#include <dev/usb/usb_bus.h> + +#include <dev/usb/controller/dwc_otg.h> + +static int dwc_otg_detach(device_t); + +static int +dwc_otg_probe(device_t dev) +{ + + device_set_desc(dev, "DWC OTG 2.0 integrated USB controller"); + return (BUS_PROBE_DEFAULT); +} + +static int +dwc_otg_attach(device_t dev) +{ + struct dwc_otg_softc *sc; + int err; + int rid; + + sc = device_get_softc(dev); + + /* initialise some bus fields */ + sc->sc_bus.parent = dev; + sc->sc_bus.devices = sc->sc_devices; + sc->sc_bus.devices_max = DWC_OTG_MAX_DEVICES; + sc->sc_bus.dma_bits = 32; + sc->sc_mode = DWC_MODE_HOST; + sc->sc_phy_type = DWC_OTG_PHY_INTERNAL; + + /* get all DMA memory */ + if (usb_bus_mem_alloc_all(&sc->sc_bus, + USB_GET_DMA_TAG(dev), NULL)) { + return (ENOMEM); + } + + rid = 0; + sc->sc_io_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, + &rid, RF_ACTIVE); + if (sc->sc_io_res == NULL) { + goto error; + } + sc->sc_io_tag = rman_get_bustag(sc->sc_io_res); + sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res); + sc->sc_io_size = rman_get_size(sc->sc_io_res); + + rid = 0; + sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, + RF_ACTIVE); + if (sc->sc_irq_res == NULL) { + goto error; + } + + sc->sc_bus.bdev = device_add_child(dev, "usbus", -1); + if (sc->sc_bus.bdev == NULL) { + goto error; + } + + device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus); + dwc_otg_platform_init(sc); + + err = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY | INTR_MPSAFE, + &dwc_otg_filter_interrupt, &dwc_otg_interrupt, sc, &sc->sc_intr_hdl); + if (err) { + sc->sc_intr_hdl = NULL; + goto error; + } + err = dwc_otg_init(sc); + if (err == 0) { + err = device_probe_and_attach(sc->sc_bus.bdev); + } + if (err) { + goto error; + } + + + return (0); + +error: + dwc_otg_detach(dev); + return (ENXIO); +} + +static int +dwc_otg_detach(device_t dev) +{ + + (void)dev; + BSD_ASSERT(0); + return (0); +} + +static device_method_t dwc_otg_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, dwc_otg_probe), + DEVMETHOD(device_attach, dwc_otg_attach), + DEVMETHOD(device_detach, dwc_otg_detach), + DEVMETHOD(device_suspend, bus_generic_suspend), + DEVMETHOD(device_resume, bus_generic_resume), + DEVMETHOD(device_shutdown, bus_generic_shutdown), + + DEVMETHOD_END +}; + +driver_t dwc_otg_driver = { + .name = "dwcotg", + .methods = dwc_otg_methods, + .size = sizeof(struct dwc_otg_softc), +}; + +static devclass_t dwc_otg_devclass; + +DRIVER_MODULE(dwcotg, nexus, dwc_otg_driver, dwc_otg_devclass, 0, 0); +MODULE_DEPEND(dwcotg, usb, 1, 1, 1); |